Datasheet
4 SDC2130/SDC2150 Motor Controller Datasheet Version 1.2. May 5, 2011
Important Warning
Carefully follow the wiring Instructions provided in the Read Me First sheet that comes with the control-
ler, or in the Power Connection section of the User Manual. The information on this datasheet is only a
summary.
Mandatory Connections
It is imperative that the controller is connected as shown in the above diagram in order to ensure a safe and trou-
ble-free operation. All connections shown as thick black lines line are mandatory. The controller must be powered
On/Off using switch SW1on the Power Control Header.
The battery must be connected in permanence to the controller’s VMot power via an input emergency switch
SW2 as additional safety measure.
Precautions and Optional Connections
Note1: Optional backup battery to ensure motor operation with weak or discharged battery.
Note2: Use precharge 1K Resistor to prevent switch arcing.
Note3: Insert a high-current diode to ensure a return path to the battery during regeneration in case the fuse is
blown.
Note4: Optionally ground the VBat wires when the controller is Off if there is any concern that the motors could
be made to spin and generate voltage in excess of 35V.
Note5: Beware not to create a path from the ground pins on the I/O connector and the battery’s minus terminal.
Single Channel Wiring
The single channel version of the controller (SDC2130S and SDC2150S) require that the output be parallel and
that the load be wired as shown in the diagram below.
Important Warning
This wiring is only possible on controllers fitted with the Single Channel version of the firmware. Dual channel
controllers will be damaged if wired as single channel. Verify that the PC utility identifies the controller as
SDC2130S or SDC2150S before applying power to the load.
M
M1+ M1- M2+ M2-
FIGURE 10. SDC2130S and SDC2150S wiring diagram